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Experimental findin...
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Hornlund, E.
(författare)
Experimental findings in support of atomic transport of hydrogen in silica
- Artikel/kapitelEngelska2003
Förlag, utgivningsår, omfång ...
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AIP Publishing,2003
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:kth-22858
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-22858URI
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https://doi.org/10.1063/1.1603350DOI
Kompletterande språkuppgifter
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Språk:engelska
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Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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QC 20100525
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Data supporting a view of both molecular and atomic transport of hydrogen in quartz is presented. By studying isotopic equilibration, it is shown that virtually all of the molecules diffusing through a 1.5 mm thick quartz membrane at 900 degreesC have undergone dissociation. The catalytic properties of platinum for the dissociation of H-2 are used to increase the surface concentration of atomic hydrogen on a quartz membrane. It is found that the high surface concentration increases the total flux of hydrogen through the membrane. It is also found by comparison with literature data that diatomic molecules probably diffuse in two modes in quartz. We suggest that these two modes are one atomic and one molecular.
Ämnesord och genrebeteckningar
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vitreous silica
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si-sio2 interface
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fused quartz
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diffusion
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hydroxyl
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deuterium
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exchange
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kinetics
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oxygen
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Hultquist, GunnarKTH,Materialvetenskap(Swepub:kth)u1y3z652
(författare)
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KTHMaterialvetenskap
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Journal of Applied Physics: AIP Publishing94:8, s. 4819-48230021-89791089-7550
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